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Tech Notes on Kaynar Style Nuts

In Kaynar style nuts a portion of the thread has been deformed to provide the locking action.  If you examine the nut closely you will see that it starts off round in shape but ends slightly oval.  It is the increased friction caused by this deformation that prevents the nut from coming undone.

Many of these nuts are supplied with an optional dry film lubricant applied, denoted by an L in the dash number.

Please note that Kaynar is a brand of Alcoa Fasteners and does not indicate the manufacturer.

Stocking, processing
and delivering aerospace parts

Hello and welcome to our website. Contained within these pages is most of the information found in our printed catalogue, all available to order online! In addition you can search our entire inventory of over 125,000 part numbers.

Stock and pricing of all parts listed on this site is live, all prices exclude VAT and shipping. All orders are subject to our standard terms and conditions.

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Quality products
and easy ordering

All our stock is available for next day delivery. In addition we have distributorships for Aircraft Tool Supply, LP Aero Plastics, Falcon Gauge, Ceconite / Randolph and Shield Technology to name but a few!

We are also the UK and European distributor for Aircraft Spruce and Speciality, with whom we have been doing business with for over 25 years.

Should you ever need any further information then our experienced sales team are just a phone call or email away and will happily answer any questions you may have.